Belt tensioner



FIG. 1 is a top rear perspective view of the design, including an armportion and a hub portion in combination.

FIG. 2 is a bottom front perspective view of the design.

FIG. 3 is a front view of the design.

FIG. 4 is a top view of the design.

FIG. 5 is a bottom view of the design.

FIG. 6 a left side view of the design.

FIG. 7 is a right side view of the design.

FIG. 8 is a top rear perspective view of the arm portion of the design.

FIG. 9 is a bottom front perspective view of the arm portion of thedesign.

FIG. 10 is a front view of the arm portion of the design.

FIG. 11 is a top view of the arm portion of the design.

FIG. 12 is a bottom view of the arm portion of the design.

FIG. 13 a left side view of the arm portion of the design.

FIG. 14 is a right side view of the arm portion of the design.

FIG. 15 is a top rear perspective view of the hub portion of the design.

FIG. 16 is a bottom front perspective view of the hub portion of thedesign.

FIG. 17 is a front view of the hub portion of the design.

FIG. 18 is a top view of the hub portion of the design.

FIG. 19 is a bottom view of the hub portion of the design.

FIG. 20 a left side view of the hub portion of the design; and,

FIG. 21 is a right side view of the hub portion of the design.

The elements of the belt tensioner are shown separately in FIGS. 8through 21 for convenience of illustration.

The ornamental design for a belt tensioner, as shown and described.